Agilent Technologies N3970A, Operating And Maintenance Manual

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16
■
S
TORING
& R
ECALLING
R
EADINGS
There are various ways of storing and recording data, giving the
user flexible ways of working. They are summarised here for
your convenience.
Storage of reference values: A separate reference is stored for
each
λ
and can be recalled when the instrument is next turned
on.
Display hold: To hold the display at it’s current value, push
HOLD. This value can then be stored. Push HOLD again to
continue updating the display.
Automatic recording of maximum & minimum limits: To display
the minimum and maximum value over a period, access the
hidden keypad and push MAX/MIN. The display will show the
maximum and minimum values in sequence. Then push
MAX/MIN for 3 seconds to re-start the recording process. This
function re-sets automatically when instrument parameters are
altered.
Storing & recalling readings using non-volatile memory
In Autotest, stored data includes absolute & relative values at all
possible wavelengths.
Note: To recall data, the unit must be in manual ‘power meter’
mode.
In manual mode, stored data includes absolute, relative and
reference values.
You can store, display or download up to 845 readings in non-
volatile memory.
Memory No Identifier Space
1 - 199 mem 199
200 - 1990 (steps of 10) mem 179
1 - 199 ID 199
200 - 1990 (steps of 10) ID 179
1 - 199 mem / ID 89
Total memory 845